The main causes of leakage are: the stator leakage , rotor leakage, leakage brush holder (metal casing angle grinder ) and internal wire breakage .
How to determine what kind of leakage in the end is the way , mainly in the following ways:
1 ) Remove the brush , you can determine whether the stator , brush holder and internal conductors have leakage .
2 ) Disconnect the stator and cable brush holder , brush holder can determine whether the leak.
3 ) whether an independent measurement of the rotor there is leakage .
If the rotor and the brush holder leakage can only be replaced if it is the stator leakage, the stator can be rewound or replaced .
